The Polarization and Population difference of the three-level atom, driven bya microwave field and interacted by a strong short laser pulse, is studied by me-ans of semiclassical theory in the paper.

本文采用半经典理论方法研究了在短脉冲作用下，被共振微波场驱动的三能级原子极化强度振幅和粒子数差随时间的变化。

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Then the spatial audio parameter ILD(Interaural Level Difference)is used to reconstruct the spatial sound field for each listener based on the theory of spatial audio object coding.

首先，根据虚拟会议的特点给出了合成会议音频的方法；然后，根据空间音频对象编码的原理，使用空间音频参数双耳声级差针对每个听者重建其空间声场。

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